Unicast can only be sent to one receiver, but when sent to multiple receivers, it is not only consuming traffic, but also time consuming, total traffic = The receiver of the traffic per recipient.Broadcast mode is sent to all hosts, the disadvantage of broadcasting is to cause information pollution, a large amount of information will occupy the network bandwidth.Multicast (multicast): Only hosts that join a multic
methods, which are called multicast delegates.If you call a multicast delegate, you can call multiple methods sequentially consecutively. For this reason, the signature of the delegate must return void (otherwise, where should the return value be sent?). (When a delegate contains only one method, the declaration of its return type can refer to the encapsulated method, not necessarily void). In fact, if the
From "Baidu Knows", I don't know!
There are three communication modes in the current network: unicast, broadcast, and multicast. Among them, multicast occurs at the latest time, but it also has the advantages of unicast and broadcast, it has the most promising future.
I. unicast:
One-to-one communication mode between hosts. vswitches and routers in the network only forward data and do not copy the
Development Environment:
Win2008Sp2Vs2008Sp1
Add roles: Web Server (IIS7), Application Server (Message Queuing)
Add features: WCF Activation Msmq:Multicasting support
Confirm:Net. Msmq Listener Adapter Running
Because I use IIS7 to Host WCF and WCF uses multiple channel bindings, the web application in the WCF determines that the msmq binding is enabled.
Publisher implementation
Send Message msg to multicast address
Msg. Body = Your Object;
Cod
know the last hop router, but silently leaves, the last hop router will also want to send data to the group if it receives the multicast message.650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M02/77/CB/wKioL1Zue5vD74TbAAGJC0OhJFQ411.png "style=" float: none; "title=" I9.png "alt=" Wkiol1zue5vd74tbaagjc0ohjfq411.png "/>650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/77/CB/wKioL1Zue57TiLoSAAF14ugJOVI622.png "style=" float: none; "tit
Abstract: multicast communication is a hot network technology. This article describes the basic concepts of IP multicast technology, multicast addressing, Internet Group Management Protocol (IGMP), multicast routing algorithms, and existing multicast routing protocols, and t
I. Introduction With the development of the network, people have developed various services on the network platform, such as E-mail, TELNET, FTP, and WWW. These services are point-to-point data transmission; people prefer to hold video conferences, listen to live concerts, and watch live broadcasts on the Internet. These are data transmission from point to point or to point, and IP multicast is required) communication technology. At present, this tech
Original: http://blog.chinaunix.net/uid-28458801-id-5085099.html
11.3 Multicast
Unicast is used for end-to-end communication between two hosts, and broadcasts are used for data communication on all hosts on the entire LAN for a host. Unicast and broadcast are two extremes, either to communicate with a host, or to communicate with hosts on the entire LAN. In practice, it is often necessary to communicate with a specific set of hosts, rather than all
In a local area network, administrators often need to send a piece of information to a group of users. If you use a one-to send method, although it is feasible, but too cumbersome, there will often be missed, wrong hair. In order to solve this group communication problem more effectively, a kind of multicast technology (also commonly called multicast communication) is presented, which is based on the IP lay
Class d ip addresses (224.0.0.0 to 239.255.255.255) do not recognize a single interface on the Internet, but recognize an interface group, which is called multicast groups.
Members of a single network use the IGMP protocol to communicate with each other. Multicast Routing Protocol for multicast routers, such as dvmrp (Distance Vector
Part of this article is reproduced in: http://network.51cto.com/art/200912/168407.htm
Before talking about IGMP, it is said that IGMP packets cannot be transmitted outside the LAN (for details, see: http://blog.csdn.net/todd911/article/details/9530633), so how to communicate between routers after hosts in different network segments join multicast groups, do you know which subnet to forward? This is the function of the IP
assurance mechanism different from traditional unicast and broadcast mechanisms. IP multicast technology is the key technology to solve these problems.I. Overview of basic knowledge of IP multicast technology1. Concepts of IP multicast technologyIP multicast is also called multi-site broadcast or
Analysis of Three TCP/IP transmission modes (unicast, broadcast, and Multicast)The Multicast Technology of TCP/IP transmission mode is a type of TCP/IP transmission mode. Before discussing Multicast technology, let's take a look at TCP/IP transmission methods. There are three TCP/IP transmission modes: unicast, broadcast, and
Original address: http://blog.sina.com.cn/s/blog_49843aeb0100i0bc.htmlMulticastfunction: Inter-host communication usage, inter-routing communication usage concept :IP multicast technology, which is one or more hosts (multicast source) that allows sending a single packet to multiple hosts (at the same time) TCP/IP network technology, is a point-to-multipoint communicationWhy use it ?: In the application of n
I. Data Transmission over an IP Network
Multicast technology is one of the three methods of data transmission over an IP network. Before introducing the IP multicast technology, we will give a brief introduction to the unicast, multicast, and broadcast modes of data transmission over an IP network:
GroupBroadcast
Unicast transmission: Implements point-to-
Introduction
In Chapter 1st, we mentioned three IP addresses: unicast address, broadcast address, and multicast address. This chapter introduces broadcast and multicast in more detail.Broadcast and multicast are only used in UDP. They are very important for applications that need to transmit packets to multiple receivers at the same time. TCP is a connection-orie
first to understand the next UDP
UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems Interconnection). Provides a transaction-oriented, simple, unreliable information delivery service, and IETF RFC 768 is the formal specification of UDP. The protocol number for UDP in IP packets is 17.
The difference between UDP and TCP: http://blog.csdn
Class D addresses are used for multicast, which starts with 1110, and the remaining 28 are used to identify multicast addresses (the remaining 28 are non-structured addresses ), MAC addresses starting with 01005e are used to represent MAC multicast addresses, while the remaining 23 are used to identify multicast. IP
To accomplish useful work, peers in peer-to-peer applications must be able to discover each other and interact with each other. This article provides an implementation of a discovery based on IP multicast.
Before a software entity can participate in a direct peer-to-peer interaction with a Peer-to-peer application feature, the entity must discover the appropriate peers to interact with. All available Peer-to-peer architectures provide a solution for
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